font_manager.py UnicodeDecodeError when starting ipython --pylab

I'm experiencing a UnicodeDecodeError when starting ipython --pylab. 
System: Debian Sid
$apt-cache policy python-matplotlib
python-matplotlib:
  Installed: 1.3.0-1

This seems to be caused by on of the font name containing non-ascii characters. The font causing the issues seems to be " Systematic TT BRK" from the ttf-aenigma package in debian sid. Error message below:

/usr/lib/pymodules/python2.7/matplotlib/font_manager.py in ttfFontProperty(font)
    396         sfnt2 = ''
    397     if sfnt4:
--> 398         sfnt4 = sfnt4.decode('ascii').lower()
    399     else:
    400         sfnt4 = ''

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc6 in position 0: ordinal
not in range(128)